The Dynamic Strength Calculation on the Reel Fulcrum of Crane Based on ADAMS and FEA

2014 ◽  
Vol 599-601 ◽  
pp. 551-554 ◽  
Author(s):  
Feng Qi Wu
Keyword(s):  
System Dynamics ◽  
Dynamic Strength ◽  
Variable Stiffness ◽  
Virtual Prototype ◽  
Wire Rope ◽  
Dynamics Model ◽  
Coupling Force ◽  
Simulation Results ◽  
The Wire ◽  
Stiffness Characteristics

Based on the multi-body system dynamics in the ADAMS environment, a virtual prototype of the reel fulcrum of crane was developed. In this model, the whole system was disassembled lifting mechanism system with flexible body dynamics model of the wire rope. The virtual running environment was established according to the actual crane operation cases, which is designed the hanging & lifting working process. It is the key step to build the reel fulcrum dynamics model for performance analysis of system dynamics, which is the basis for the optimize design of the reel fulcrum of crane. Theoretical model analysis usually does not consider the coupling force status of the reel fulcrum of crane. It is a steady-state analysis to the reel fulcrum of crane models. These models have played an important role in the assessment of the reel fulcrum of crane performance and the system parameters, but do not reveal the interaction of the reel fulcrum of crane and the wire rope, which fail to be a comprehensive understanding practical system dynamics characteristic. Virtual prototype simulation results will be applied to prototype design and evaluation, and save a lot of manpower and material resources. At the same time,the method has an advantage for dynamics analysis to simulating some dangerous movement conditions, which is hard to be replayed or simulated at the test actual working condition site. In particular, some cases cannot be recurrence in the accident handling process. The simulation results show that the response value. Variable stiffness characteristics of wire rope of hoisting mechanism are implemented successfully through discrete multiple rigid body being applied to the wire rope in this paper. The establishment of the Reel fulcrum dynamic model is based on ADAMS, which realizes the reel fulcrum of crane system coupling modeling. These results show that the model reflects the actual dynamics of the reel fulcrum of crane, and also presents that some of the theoretical analysis results cannot be usually confirmed.

Movable Pulley Movement Characteristic Analysis Based on Adams

2014 ◽  
Vol 1030-1032 ◽  
pp. 1210-1214
Author(s):  
Feng Qi Wu ◽  
Jin Zhang ◽  
Wen Qing Yao
Keyword(s):  
System Dynamics ◽  
Variable Stiffness ◽  
Process Variable ◽  
Virtual Prototype ◽  
Wire Rope ◽  
Dynamics Model ◽  
Characteristic Analysis ◽  
Actual Working ◽  
Movement Characteristic ◽  
The Wire

Based on the multi-body system dynamics in the ADAMS environment, a virtual prototype of crane hoisting mechanism was developed. In this model, the whole system was disassembled lifting mechanism system with flexible body dynamics model of the wire rope. The virtual running environment was established according to the actual working conditions, which is designed the lifting working process with rope-movable pulley contact. It is the key step to build hoisting mechanism dynamics model for performance analysis of system dynamics, which is the basis for the optimize design of hoisting mechanism. Virtual prototype simulation results will be applied to prototype design and evaluation, and save a lot of manpower and material resources. At the same time, the method has an advantage for dynamics analysis to simulating some dangerous movement conditions, which is hard to be replayed or simulated at the test actual working condition site. In particular, some cases cannot be recurrence in the accident handling process. Variable stiffness contact characteristics of wire rope-movable pulley of hoisting mechanism are implemented successfully through discrete multiple rigid body are applied to the wire rope in this paper , the establishment of a crane hoisting mechanism dynamic model is based on ADAMS, which realize hoisting mechanism flexible simulations, running virtual environments of hoisting mechanism is established, these results show that the model reflected the actual dynamics of hoisting mechanism, also present that some of the theoretical analysis results cannot confirm.

Research on the Simulation and Realization Approach of Urban Low-Carbon Transport

2014 ◽  
Vol 989-994 ◽  
pp. 1328-1332
Author(s):  
Xiu Li Gao ◽  
Tian Jun Hu ◽  
Peng Peng
Keyword(s):  
System Dynamics ◽  
Transport System ◽  
Low Carbon ◽  
System Dynamics Model ◽  
Dynamics Model ◽  
Development Trends ◽  
Policy Simulations ◽  
Simulation Results ◽  
The Relationship ◽  
Carbon Transport

This paper discusses the connotation of urban low-carbon transport in detail, on the basis of the analysis of low-carbon transport. Combined with the relationship among urban low-carbon transport system elements, the article establishes the system dynamics model. Finally, it simulates the development trends of low-carbon transport in Beijing in the future, and compares the simulation results of different traffic schemes. Moreover, the study puts forward the concrete policy simulations to improve urban low-carbon transport.

Study on the Influence of Government Incentive Measures on Product Recovery Based on System Dynamics Simulation

2013 ◽  
Vol 711 ◽  
pp. 701-706
Author(s):  
Xian Liang Zong
Keyword(s):  
System Dynamics ◽  
Evolutionary Game ◽  
Stable State ◽  
Product Recovery ◽  
Dynamics Simulation ◽  
Recovery Ratio ◽  
System Dynamics Model ◽  
Dynamics Model ◽  
Reasonable Range ◽  
Simulation Results

An evolutionary game model between manufacturers is established to study the influence of government incentive measures for the EOL product recovery based on the assumption that all manufacturers have bounded rationality. Analysis on stable state shows that the evolutionary stable state does not always exist in the model. On the basis of this analysis, a system dynamics model is established to analyze the influence of the lowest recovery ratio and the fixed reward on the recovery behaviors of manufacturers by simulation. Simulation results illustrate that there exists a reasonable range of the lowest recovery ratio within which government incentive measures work well and the fixed reward can expand the width of the reasonable range. Any above or below the reasonable range of the lowest recovery ratio will invalidate government incentive measures. Government should enhance the degree of the lowest recovery ratio in the below situation, and provide manufacturers with greater amounts of reward for their product recovery actions in the above situation.

A System Dynamics Model of Health Insurance Financing in Austria

2010 ◽  
Vol 20 (2) ◽  
pp. 59-62
Author(s):  
Patrick Einzinger ◽  
Günther Zauner ◽  
G. Ganjeizadeh-Rouhani
Keyword(s):  
Health Insurance ◽  
System Dynamics ◽  
System Dynamics Model ◽  
Dynamics Model

scholarly journals Transforming a Liability into an Asset: A System Dynamics Model for Free-Ranging Dog Population Management

Systems ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 56
Author(s):  
Urmila Basu Mallick ◽  
Marja H. Bakermans ◽  
Khalid Saeed
Keyword(s):  
System Dynamics ◽  
Social Integration ◽  
Unintended Consequences ◽  
System Dynamics Model ◽  
Dynamics Model ◽  
Innovative Strategies ◽  
Management Context ◽  
Free Ranging ◽  
Social Rewards

Using Indian free-ranging dogs (FRD) as a case study, we propose a novel intervention of social integration alongside previously proposed methods for dealing with FRD populations. Our study subsumes population dynamics, funding avenues, and innovative strategies to maintain FRD welfare and provide societal benefits. We develop a comprehensive system dynamics model, featuring identifiable parameters customizable for any management context and imperative for successfully planning a widescale FRD population intervention. We examine policy resistance and simulate conventional interventions alongside the proposed social integration effort to compare monetary and social rewards, as well as costs and unintended consequences. For challenging socioeconomic ecological contexts, policy resistance is best overcome by shifting priority strategically between social integration and conventional techniques. The results suggest that social integration can financially support a long-term FRD intervention, while transforming a “pest” population into a resource for animal-assisted health interventions, law enforcement, and conservation efforts.

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